Help highschool 1rst 4 perfect numbers

A number is called a proper divisor of N if M < N and M divides N. A positive integer is called perfect if it is the sum of its positive proper divisors. For example, the positive proper divisors of 28 are 1, 2, 4, 7, and 14 and 1+2+4+7+14=28. Therefore, 28 is perfect. Write a program to display the first 4 perfect integers.